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PC27E
LOW COST
16 CHANNEL
12 BIT
A/D CONVERTER
BOARD
This Instruction Manual is supplied with the PC27E to provide the user with sufficient information to utilise the product
in a proper and efficient manner. The information contained has been reviewed and is believed to be accurate and
reliable, however Amplicon Liveline Limited accepts no responsibility for any problems caused by errors or
omissions. Specifications and instructions are subject to change without notice.
PC27E Instruction Manual Part Nº 859 561 14 Issue A2
© Amplicon Liveline Limited
Prepared by Technical Publications
Approved for issue by A.S. Gorbold, Operations Director
PC27E
Page 1
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Table of Contents
Summary of Contents for Amplicon Liveline PC27E
- Page 1 A/D CONVERTER BOARD This Instruction Manual is supplied with the PC27E to provide the user with sufficient information to utilise the product in a proper and efficient manner. The information contained has been reviewed and is believed to be accurate and reliable, however Amplicon Liveline Limited accepts no responsibility for any problems caused by errors or omissions.
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Page 2: Declaration Of Conformity
CENTENARY INDUSTRIAL ESTATE HOLLINGDEAN ROAD BRIGHTON BN2 4AW UK We declare that the product(s) described in this Instruction Manual are manufactured by Amplicon Liveline Limited and perform in conformity with the following standards or standardisation documents: EMC Directive 89/336/EEC LVD Directive... -
Page 3: Table Of Contents
MODEL PC27E 16 CHANNEL 12-BIT A/D BOARD LIST OF CONTENTS PARA SUBJECT PAGE GENERAL INFORMATION General Description Features GETTING STARTED Installing the PC27E Requirements to Run the Software Backing up the Software Installing the Software on a Fixed Hard Disk... - Page 4 SW1 D.I.L Switch Selection for Base Address Connections to Counter/Timer Jumpers Connector SK1 Pin Designations Main Bus Backplane Connector Pin Assignments Analog to Digital Converter Output Code PC27E Block Diagram PC27E Printed Circuit Board Layout PC27E Circuit Diagram LIST OF TABLES TABLE TITLE PAGE...
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Page 5: General Information
1. General Information General Description The PC27E is a half sized plug in board which provides 16 channels of 12 bit, high speed analog to digital conversion. Integral sample and hold circuitry ensures stability during the conversion process. The PC27E board can be installed in the IBM PC/XT/AT, PS2 Model 30 and compatible computers. -
Page 6: Getting Started
I/O channel expansion slots. The PC27E may be installed in any available slot in the machine provided that there is no restriction placed on that slot by the manufacturer of the machine. -
Page 7: Installing The Software On A Fixed Hard Disk
Start menu. In the dialogue box that follows, type A:\SETUP <RETURN> The PC27E software setup program will now run. Follow the instructions given on the screen to complete the installation. See Section 6 ‘PROGRAMMING' for details on running the software. -
Page 8: Specifications
- 50dB (at 1 MHz) Oscillator accuracy ±0.3% Oscillator stability ±0.3% Power Requirements + 5 volts at 220 mA (From host PC) - 5 volts at 5 mA +12 volts at 5 mA -12 volts at 6 mA Page 8 PC27E... -
Page 9: User Settings
FIG. 1 SW1 D.I.L SWITCH SELECTION FOR BASE ADDRESS Input/Output Address Space used by the PC27E The I/O Addresses of all the port registers used by the PC27E are shown in Table 1, where BA is the base address of the board (factory configured to HEX300). -
Page 10: Interrupt Request Level Selection
TABLE 1 ADDRESS SPACE FUNCTIONS Interrupt Request Level Selection There are six Interrupt Request levels available on the PC27E, IRQ2 - IRQ7 with IRQ2 having highest priority and IRQ7 the lowest priority. The interrupt level is selected by the position of... -
Page 11: Frequency Measurement
PC27E board. The degree of retardation can be adjusted to give optimum performance in any machine. Being local to the PC27E board, this slowing down in no way impairs the performance of the host computer. -
Page 12: Input Voltage Range Setting
4.6.1 Input Attenuators Although the PC27E has pre-defined input ranges, these can be modified on a channel by channel basis to allow higher or intermediate input voltages to be handled. This is accomplished by drilling out a link from the required channel and inserting appropriate resistors. - Page 13 100k + Rin Maximum input voltage ) (100k x ----------------------------------- ) - 100k Full scale reading (100k x 25/2 ) - 100k 1.15MΩ Insert a 1.15MΩ high stability resistor in the position vacated by drilling out RN2 - A. PC27E Page 13...
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Page 14: Electrical Connections
5. ELECTRICAL CONNECTIONS User Connections Inputs and Outputs to the PC27E are connected via a 37-way D socket on the PC27E card mounting bracket and marked SK1. Be careful to observe pin numbering. EXT CLK EXT TRIG AGND AGND CHN0... -
Page 15: Main I/O Bus Backplane Connections
< > Ground < < > * Note: Pin B4 is IRQ2 for an XT Pin B4 is IRQ9 for an AT which is re-directed as IRQ2 FIG. 4 - MAIN PC BUS BACKPLANE CONNECTOR PIN ASSIGNMENTS PC27E Page 15... -
Page 16: Programming
Visual Basic programs are provided. Any number of these programs can be run concurrently to build up the system represented by one or more of the boards being used. The default installation for the PC27E creates four new icons in the ‘Amplicon Introductory DLLs’ folder/Program Manager group: AD27DEMO... -
Page 17: Copyright
The software on the demonstration disk is copyright Amplicon Liveline Ltd. Any user who has purchased a PC27E may use the software, or any part of it, for use in his own programs, or for resale when delivered with a PC27E. -
Page 18: Programming The 7870 A/D Converter
Programming the 7870 A/D Converter There is no need for software programming of the A/D mode since the operational conditions are set up in the hardware on the PC27E. The 7870 is wired for Mode 1 operation, with parallel output format in two bytes. -
Page 19: Programming Hints
10 µSecs to within 0.1% of full scale. As the A to D Converter incorporates a sample and hold circuit, careful programming can allow the analog settling time to overlap A to D conversion time for maximum throughput. PC27E Page 19... -
Page 20: Aliasing
±5 volts. Calibrating the PC27E 6.7.1 Unipolar Calibration Run the PC27E Pascal demonstration program From the main menu, press 2 to select Software Controlled sampling on one channel only . Enter 1 for unipolar Input and confirm. -
Page 21: Bipolar Calibration ±2V
Set the voltage source to +3.999 and adjust RV1 until data reading is 2046-2047. Repeat 7 and 8 if necessary. 6.7.2 Bipolar Calibration ±2 volts Run the PC27E Pascal demonstration program. From the main menu, press 2 to select Software Controlled sampling on one channel only. Enter 3 for Bipolar input ( and confirm. -
Page 22: Pc27E Block Diagram
& 0XOWLSOH[HU $GGUHVV 'DWD &RQWURO &2817(5 7,0(5 &21752/ 7,0(5 %LWV &21752/ 3& $GGUHVV 0+] & 26& %$6( $''5(66 %LWV 6(/(&7,21 &/. :$,7 67$7( ,2&+5'< (;7 75,* *(1(5$725 6\V &ON FIG. 6 PC27E BLOCK DIAGRAM Page 22 PC27E... -
Page 23: Pc27E Printed Circuit Board Layout
FIG. 7 PC27E PRINTED CIRCUIT BOARD LAYOUT PC27E Page 23... -
Page 24: Pc27E Circuit Diagram
FIG. 8 PC27E CIRCUIT DIAGRAM Page 24 PC27E...
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